Bioremediation of Petroleum Hydrocarbons:Advances in Contact Mixing

摘要

To locate a successful business, the 3 keys to success are location, location,location. The 3 keys to conducting a successful in situ remediation project are contact,contact, and contact. There are both monetary and process benefits with respect toconducting in situ remediation projects as opposed to dig and haul. If petroleum contaminatedsoil and sludge particles are reduced to the smallest possible diameter via aggressivehomogeneous mixing of contaminant and additive package of choice, the performanceand economic benefits will be maximized. Supplying uniform and high energyto the mixing process of contacting additives with contaminants is optimized and efficiencyof the process is improved when the contaminant particle size is reduced to itssmallest diameter, thus maximizing soil particle surface area and thus contaminant contactarea. Bioremediation and chemical oxidation additive pathways are optimized andare more uniform when the additive and contaminant mixing process breaks soil andcontaminant particles down to their smallest diameter and as a result the mixing processproduces a homogeneous blend of additive and contaminant. There have been significantadvances to equipment and technology to provide aggressive contact mixing. This papersummarizes those advancements and provides case study information to demonstrate theeffectiveness of bioremediation of petroleum hydrocarbon contaminated soils.